Highest September Temperatures in Sioux Falls
A list of the highest temperatures ever recorded in the month of
September in
Sioux Falls, South Dakota from 1932–2024.
What's the hottest it has ever gotten in Sioux Falls in September?
The hottest September temperature in Sioux Falls, South Dakota history was 104 °F which occurred on September 6, 1976.
| Rank |
Temperature |
Date |
| 1 |
104 °F |
September 6, 1976 |
| 2 |
101 °F |
September 2, 2023 |
| 2 |
101 °F |
September 6, 1970 |
| 4 |
100 °F |
September 4, 2023 |
| 4 |
100 °F |
September 7, 1971 |
| 6 |
99 °F |
September 2, 1956 |
| 6 |
99 °F |
September 15, 1955 |
| 8 |
98 °F |
September 5, 1990 |
| 8 |
98 °F |
September 8, 1947 |
| 10 |
97 °F |
September 3, 2023 |
| 10 |
97 °F |
September 8, 1983 |
| 10 |
97 °F |
September 2, 1971 |
| 10 |
97 °F |
September 6, 1947 |
| 10 |
97 °F |
September 14, 1939 |
| 15 |
96 °F |
September 11, 2012 |
| 15 |
96 °F |
September 2, 2012 |
| 15 |
96 °F |
September 12, 1990 |
| 15 |
96 °F |
September 2, 1983 |
| 15 |
96 °F |
September 1, 1970 |
| 15 |
96 °F |
September 27, 1956 |
| 15 |
96 °F |
September 16, 1955 |
| 15 |
96 °F |
September 3, 1947 |
| 15 |
96 °F |
September 13, 1939 |